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Customer-developed protocol: precise genome editing in mouse embryos via ex vivo injection of RNP complexes and long ssDNA
The development and refinement of CRISPR genome editing technology has provided researchers with a more efficient, streamlined, and faster approach for generating knockin mouse models as compared to classical gene targeting. The following protocol, generously provided by Dr. Benedikt Wefers, Laboratory Head at the German Center for Neurodegenerative Diseases (DZNE), employs ex vivo microinjection of Cas9-guide RNA (crRNA:tracrRNA duplex) ribonucleoproteins (RNPs) in tandem with long ssDNA templates for homology-directed repair (HDR) into mouse zygotes.
Benedikt Wefers, Ph.D.
Using this approach, Dr. Wefers and colleagues were able to achieve efficient insertion of a fluorescent protein in frame to an endogenous gene, as demonstrated by the corresponding application data.
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